ثابت های Bitmap آیتم منو در MenuIteminfoA

 D:  Means Disabled

HBMMENU_SYSTEM = 1
	HBMMENU_MBAR_RESTORE = 2
	HBMMENU_MBAR_MINIMIZE = 3
	HBMMENU_MBAR_CLOSE = 5
	HBMMENU_MBAR_CLOSE_D = 6
	HBMMENU_MBAR_MINIMIZE_D = 7
	HBMMENU_POPUP_CLOSE = 8
	HBMMENU_POPUP_RESTORE = 9
	HBMMENU_POPUP_MAXIMIZE = 10
	HBMMENU_POPUP_MINIMIZE = 11

MF_GRAYED=&H1  : MF_DISABLED=&H2 : MF_BYPOSITION=&H40

Dim Hicon As IntPtr = img.GetHbitmap

        'remove first item
        RemoveMenu(iMenu, 0, MF_BYPOSITION)
        DrawMenuBar(iMenu)
        'add new item
        InsertMenu(iMenu, 0, MF_BYPOSITION, 0, "Restore")
        DrawMenuBar(iMenu)
        SetMenuItemBitmaps(iMenu, 0, MF_GRAYED Or MF_BITMAP, Hicon, Hicon)
        'disable
        EnableMenuItem(iMenu, 0, MF_BYPOSITION + MF_DISABLED + MF_GRAYED)
        DrawMenuBar(iMenu)9